SKETCHBOOK: ASTROPHOTOGRAPHY: THIS MONTH'S SKY: Trawling the Lagoon Nebula Image the Planets Like a Pro Catch a Dwarf Planet PAGE 20 PAGE 58 PAGE 48 THE ESSENTIAL GUIDE TO ASTRONOMY AUGUST 2020 Revealing the Radio Universe Page 12 skyandtelescope.org Saegmuller's Forgotten Refractors Ice Volcanoes Across the Solar System Backyard Observatories You Can Build Page 26 Page 32 Page 68http://www.skyandtelescope.org